Machine for operating upon shoes



Oct. 14,1941. Hfs. GREENOUGHA 2,258,703

MACHINE FOR OPERATING UPON SHOES Filed Aug. 25, 1939 12 Sheets-Sheet lOct. 14, 941. B, G'REENOUGH 2,258,703

MACHINE FOR OPERATING UPON SHOES Filed Aug'. 25, 1939 12 Sheets-Sheet 2@VEA/TUR Oct. 14, 1941. H B., GREENQUGH 2,258,703

MACHINE FOR OPERATING UPON SHOES Filed Aug. 25, 1939 12 Sheets-Sheet 3Oct. 14, 1941. H B GREENQUGH 2,258,703

MACHINE FOR OPERATING UPON SHOES Filed Aug. 25, 1939 12 Sheets-Sheet 4Figa. /VVE/VT/Cl Oct. 14,1941. H. B. GREENOUGH ,2,258,703

MACHINE FOR OPERATING UPON SHOES Filed Aug. 25, 1939 12 Sheets-Sheet 5QBEM Tig'la Ot. 14, 1941. H. B GREENOUGH 2,258,703

MACHINE FOR OPERATING UPON SHOES Filed Aug. 25, 1939 12 sheets-sheet eOct. 14, 1941.

H. B. GRE-ENOUGH 2,258,703

MACHINE FOR OPERATING UPON SHOES Filed Aug. 25, 1939 12 sheets-sheet 7 108 w/EA/ TUA/i Oct. 14, 1941. AH. B. GREENOUGH 24,258,703

MACHINE FOR OPERATING UPON SHOES Filed Aug. 25, 1939 l2 Sheets-Sheet 82oz aus@ 20| 230 1200 m aos 252 i l 254 J5 i 21e /5 Tigl V 3% Oct. 14,1.941. H. la..` GREENOUGH 2,258,703

MACHINE FOR OPERATING UPON SHOES Filed Aug. 25, 1939 l2 Sheets-Sheet 9ITO /w/WURL 4.,n7 /551/ ,59 my..

oct. 14, 1941. H. B 'GREENUGH 2,258,703

MACHINE FOR OPERATING UPON SHOES Filed Aug. 25, 1959 l2 Sheets-Sheet 10Oct. 14, 1941. BfGREENoUGI-l 2,258,703

MACHINE FOR OPERATING UPON SHOES Filed Aug. 25, 1959 l2 Sheets-Sheet 11Oct. 14, 1941. H B GREENOUGH 2,258,703

MACHINE FOR OPERATING UPON SHOES Filed `Aug. 25, 1959 12 Sheets-Sheelll2 262 104 266 J f 276k M 27 0 ISO 7 240 r 260 f" l '80 Patented Oct.14, l94

UNETED STATES PATENT OFFICE MACHINEFOR OPERATING jUPON SHOES Henry B.Greenoilglrl, Beverly, lllass., assignor to Jersey Application vAugust25, 1939, Serial No. 291,942 93 Claims. r(01.12-42) My invention relatesto machines by which operations are performed upon shoes, it beingparticularly applicable to operating `upon the bottom-edges, as, forexample, in removing material from the peripheries of -heels by trimmingand scouring.

The curved peripheral Walls of shoe-heels may lie at angles to thevertical axes -of Athe heels varying Widely at different points about avheel and in heels of different types. It is an object of this inventionto cause a tool or tools, which are to operate upon such ashoe-bottom-edge as that of a heel, to assume, with respect to itsperiphery, angles which it may have or vwhich it is desired that itshall have, this being accomplished accurately by mechanisms in whichcomplication is minimized.

In the attainmentof this obi-ect, as a fea-ture of the invention, Icombine AWith a shoe-support and a rotatable tool, as a trimming cutterrfor operating upon the `bottom-edge of a supported shoe, the support andshoe being movable relatively to carry the point ofV opera-tion of thetool about the edge, means contacting Wit-hthe `bottom-edge fordetermining the angle between the operating portion of the tool and saidedge. bottom-edge With which contact is had may be upon an attachedtop-lift, a lfeeler being shown as engaging it and controllinghydraulic-or other motor mechanism which accurately eiects 4the angularVariation ofthe tool. -This -toolis preferably driven by a motor-shaft,`the motor being mounted upon a linkage or linkages so `arranged as tovary the angle of the operating portion of the tool to the periphery ofthe heel being Aoperated upon about points in a. predetermined jline. Asillustrated, the motor, with its driven tool, is mounted for oscillationupon a carrier which is movable toward and from the Work-support betweeninactive and active positions, the latter position being determined byContact -of a gage member on the carrier with the work-support.

Oscillation of the tool in anactiveposition mayv be controlled, aspreviously indicated, during op-v eration upon the Work. Thisoscillatory movement is also preferably utilized to present 4the toolmore advantageously to the Work, and -this may be effected, ifdesired,-by the same actuating mechanism. l

As another feature of the invention, and this is not necessarily limitedto operations Yupon the bottom-edges of shoes, there is 'associated witha tool, which operates at diierent points about supported vWork and alsoin diiferent `positions -at Tiri ^ govern the action of another tool ortools.

different points, a device having a controlling 55 g changes.

, served its purpose.

surface variable in form, together with means for transmitting movementsof the tool to the device to change the form of the eontrollingsurface,as the point of oper-ation of the tool By this means, a record iscreated of the tool-movements during, an operating cycle vor a portionof a cycle, and this m-ay be caused to produce similar movements ofanother tool by very simple means. Herein is disclosed alcam havingmovable sections furnishing a controlling surface, `and means fortransmitting movements of a .tool to the sections to chang-e theirpositions.

The form 0f the Ycam or other device is temporarily retained and thenreleased Awhen it has As illustrated, the cam-sections are `carried byVpistons operating in cylinders and are normally elevated by springs, theflow .between opposite ends of .the cylinder-s being governed by valvesto lock and 'unlock the sections.

My invention preferably takes the vform of Ya multi-station, turret-typemachine. In such an organization, the Variable controlling device -orcam is adj/usted or set at 4one station, A'thereafter altering theeffect of an operating mechanism upon :the Work` at another than theVadjusting station. The adjustment may `be made during the .operation .ofa tool in -eliiier-ent positions thereat and employed .at succeedingstations to More specifically, in connection with -operationsperformedupon shoes, We have a rotatable turret, a series of shoe-supportsrotatable on the turret, a cam rotatable. with the turret and consistingof a series of variable sections generally corresponding to theperipheral contour of a heel, a series of stations having tools Itowhich the Worksupports are presented successively bythe turret, aV:member movable with the .tool at -one station for positioning thesections of the cam, `and a member engaging `the positioned-cam formovi-ng the tool at another station. The tool, the po sitioning of whicheffects thev setting of the cam, may be a trimming cutter, which isitself Agoverned by a feeler vcontacting withv the heel, While at thesucceeding stations may-be scouring tools controlled'by said cam. Inthis turret machine, the `carriers ofthe operating mechanisms 4at thesuccessive stations are preferably guided by contact with the sameVsurface of a work-support,v

and the oscillations of all the tools by such mechanisms upon theircarriers are about Apoints in the same line determined bythetool-,mountings, independently -of engagement with the Work.

It is important, in operating upon work in the manner hereinbeforeindicated, that it shall be held rmly against displacement. A furtherfeature of my invention may be found in a support for the work. Icombine with a tool which transmits its movement to a controlling deviceto change its form, a support Which is constructed and arranged to holdwork in a predetermined relation to said controlling device. With suchdevice in its preferred embodiment,

this being a cam extending about the support, l

said support has opposite controlling portions movable toward and fromeach other to locate a shoe symmetrically with respect to the cam. Thereis also a breast-gage for a shoe-heel, .together with means for forcingthe heel-breast against the gage to locate the work in a definiteposition longitudinally. Preferably a band surrounds the counter-portionof the shoe, and has guides permitting movement of its rear and sides.When a shoe has been correctly located and clamped, as by levers actingupon the sides of the band, said sides may be held against separationand releaseof` the work by locks applied to the levers.

In the accompanying drawings, illustrating one of the many embodimentswhich my invention may assume,

Fig. 1 is a front elevation of the improved machine;

Fig. 2 an enlarged plan view of one of the work-supports, with itstool-controlling cam;

Fig. 3 a side elevation of the heel-trimming and randing mechanism and aportion of the associated turret; Y

Fig. 4 a side elevation oi elements included in the connections betweenthefeeler of the trimming and randing mechanism and the valve which itcontrols;

Fig. 5 a partial view, similar to Fig. 2, and including means forcontrolling the locking of the cam-sections;

Fig. 6 a like fragmentary view bringing out the action of thecontrolling nger upon one of the cam-sections;

Fig. 7 a Vertical transverse section through one of the Work-supports,together with its actuating means and an associated cam-section, a shoebeing clamped in the support;

Fig. 8 a transverse sectional detail of the actuating `means of Fig. 7,but in the Work-releasing relation;

Fig. 9 an end elevation of the cam-engaging means, included in one ofthe operating mechanisms;

Fig. 10 an enlarged end elevation of the outer motorand tool-supportinglinkage of Fig. 3;

Fig. 11 an enlarged vertical section, taken just back of the motor, andshowing the rear sup-` porting linkage;

Fig. 12 an enlarged side elevation of the rear portion of a work-supportand the more closely associated elements;

Fig. 13 an irregular horizontal section through the band-carrying and-actuating means of the work-support of Fig. 7;

Fig. 14 a detail in perspective of a portion of the toggle-connectionsfor actuating the worksupport;

Fig. 15 a vertical transverse sectional detail through one of thecam-sections and its controlling means, in an initial position beforeresetting;

Fig. 16 a similar view with the cam-section unlocked, ready for setting;5

Fig. 17 a like View with the cam-section set and locked;

Fig. 18 a plan view, partly in section, of the hydraulic mechanism bywhich the angle of the trimming and randing mechanism is altered;

Fig. 19 a detail in side elevation of the connection between thehydraulic mechanism and the mechanism which it actuates;

Fig. 20 a View, similar to Fig. 3, of the coarsescouring mechanism;

l Fig. 21 an enlarged irregular vertical section 4 taken at the rear ofthe motor in Fig. 20;

Fig. 22 a vertical sectional detail, particularly illustrating themounting of the contact-lever and gage-disk of the coarse-scouringmechanism;

Fig. 23 a fragmentary plan of the support for the gage-disk appearing inFig. 22; while Fig. 24 illustrates, in side elevation, the engagementbetween the gage-disk of Fig, 20 and the Work-support.

Upon a frame I0 is rotatable about a vertical axis a turret T. Risingfrom the upper face of the turret, near the periphery and spaced equallyfrom one another about it, are Work-supports W, of which there may befive. Each support has a carrier-plate I2, the hub I4 of which isstepped for rotation upon the turret. All the supports may be carried inthe rotation of the turret successively to stations equal in number tothe supports. The character of the operations performed at thesestations is not necessarily material to the present invention. They areherein disclosed as acting to shape, to the desired contour, theperiphery of a heel attached to a shoe., For this purpose, there is anentering station A, a trimming and randing station B, a coarse-scouringstation C, a iine-scouring station D, and a brushing station E. During acomplete operating cycle made up of five successive steps, the turretrotates through 360 to present, successively,l each Work-support to eachoperating station, and each of said supports is rotated about the axisof its hub I4 to cause the tools of the operating stations to act uponcertain of the desired portions of the heels or other work. A

reverse rotation of the turret also plays a part in this 4action of thetools. During rotation of the support, its plate I2 may rest upon a rollI3 turning about a horizontal axis upon a bracket I5 iixed to the frameI0. This resists displacement of this side of the plate by pressuresapplied from above, as will later appear. The support is steadied in itsrotation by a spring-finger I1 projecting from the bracket and bearingupon the edge of the plate. Rotation of the support is therebyguardedagainst, while it is not under the controlv of its actuating means.

The tools are moved from inactive positions, afterthe supports arelocated ready for the operations, to active positions, and are returnedimmediatelyupon the completion of said operations. Further, the work isclamped in each support at the entering station, and then freed forremoval as it is arriving` at said station at the completion of theoperating cycle. These movements imparted to the elements may be thesame as those set forth in Letters Patent of the United States No.1,943,308, Greenough, January 16, 1934, and produced by the same means.mainactuating mechanism, located Within and just above the body-portionof the frame ID, below the turret, is indicated by the character M. Itwill be suiicient, here, merely to' outline the operations for acomplete cycle. The operator applies aV shoe to a supportW which isapproach- This,

aesa'zoar:

pointing inan;anticlockwisefdirectinl aslfviewe' from above, Vanddepresses.andlreleases a treadlexll This causes th'e successive"engagt-:A f

under the1power= of the ymachine," the Work` is clamped. Thereare.alsoproduced 'movements of i theturr'et eindwerk-supports'constitutingmthe first step of anoperating cycleandashiftingll ofconstantly driven tools'J into and out of active position. l Thework-support, after leaving-ther entering" station, sfadvanced anti-clo`:kwiseto`- station l-B vrby rotation-ofi the turret, vbeing =reeleased'irom rthe meansv4 which .causes-1l rotationf aboutts own axis,Aand-stopswith a rotatable combined trinnningandfranding cutter b atlthestation opposite lthe outer "breast-'corner Y ofthe heel: l'The lcutteris moved into its operatingposi-` tion `and-the actuating #mechanismthen reverses' the rotation of the turretpit 'turning back clockV wise-to carry the 'side Walle-offtheheel along-the cutter b to a point atthe outerwvall 'betwe'enftheV gradually curvedY side Aand vthe moresharply curvedr'ear.- During this -reverse movement, the cutter' trimsVthis portion of-the heel -towapproxi mately the chosen form' and bevels'the' edge of the outsole adjacentvto the-rand-creasa" The" turret againstops, andY the Work-support is'- rotatedl aboutts axis `clockwisewhilethe cutter* acts upon the curved 'rear portion-offtheheel andoutsole.This motion ceases `Ywhen the 'op-'-r posit'e,-less curved side isreached, and the turretNr again turns' clockwise -for `operation-uponthis` portion ofthe work.v The rst step'oil the cyclel KK --levers30 `Joutwardly; so-their extensions-32 Yleave theba-nd 124 free toassumey an open position due to its resilience? As# alreadypointed-Hout, de- V pression-and release-of the treadlecauses clamp` eis therebyv terminated; with Athex innerV breastcorner of the heel at"thecutterand` the cutterl shifted-outofy operating position, powerbeing3 disconnected automatically" fromA v'the actuating:

mechansrnM. The "operator, after 'applyir'ig a shoezto lthe succeedingsupport W now at station A, depresses and releases the trea-dle t. Againthe" turret takes a step anti-clockwise', and While "the support;r themovementof which Was'firs't "Coni sidered, is advancing from station Bto'station'C,

it is rotated anti-clockwise about itsverti'cal axis' through4substantially 180to bring thewheele" end'of the shoejagain'in thedirection Hofuevolution: This sequence of 'operationsoccurs intcone'necticn 'With the succeeding stations', a 'course abrasive belt c atstation C preliminarilysm'ooth ingith'e trimmed wall of the heel; then afiner i belt d 'acting upon' 'the heelewall' Iat stationDj anda brush Aeat stationEremoving from-the; scoured surface the du'stwhich has lbeencreated;

The'support n'ally again reaches'statio'n VA in the succeeding 'serieslofl operations..

Turning now A"to thefe'atures peculiar: tothe present 'machine .andtakingI rst the work'- supports `W, all these may be*the same so' buton'eneed bedescribed.` Attached' "to" the plate S12 across aspaceat its"outer edge, is a standard I6 (Figsil, '2, 3,7,8 and 13) Aupon'which'aresecuredf twoarm's I8, "18' diverging upwardly and out; Ywardly."`.Uponthe'upper 'extremityof eachof these arms; pairs.`of"ho'rzo`ntally" spaced rolls"y 26, 2D are rotatable and between"th'ese rolls 'hori maylbetfincreased byslots 263 cut in .its upperportio :n

to v`act upon the Averticalportion-of Ithe correto the-leverarmfat44;itbeingfmovable 'through toggleconnection'scarryl the upper -arms of ltheingf-ofthe -work'under-the power of the machine.

"'405`Th'e'spind1e'42 iselevatede-byxa reciprocatory member*SU-"{Figi 1) ,51 as in v'the' previously inof whichenters therand-"crease, andthe spindle is raised'by'themechanism'M, thel rods38are' swung outwardlygand through thefsprings 48"' forceout"yieldably'ithearms-35 "of the levers 30;'V This'parries intl'ieupperarms of these'levers;

andt-heir-extensions 32 Vpress toward each other thesides oftheband'tohold the shoe rmlybevtween them.

T"x'the"shoe' inla denite position 'longi tudinal1y,one ofthe levers3has adjustably se- 'conne'cti'ons 54 la gagenger' 5E, havingprojectnormally'lies oppositelthe opening betweenthe is infront'ofthe'br'east of Va heel I-I upon the -ment1 Upon thentro'duction of theshoe into the band, it contacts with the inner sideof the ngerAliswinging it 'to'.one side of the path` of advance"into -the'.bandandlcompressing the" spring 48'. Afterthe heel-breast has passedthe eXtensionBg the spring'returns thenlger and its extension"to"`gagingiposition; WhenV the shoe bandl is Sofi generally-f`horseshoel0:shape-fand -ha's a reduced: upperedge-128,Iwhi'ch isadapted Lto'-enteiefthelrand-creasenof a shoeS,andaconformliitself-about `the icounter-portion to theentiiieirangeof;sizes Lof shoes tobe operated Y, up'o'nf Th'bahdisforced-inwardly by-apair standard Hij-and each provided at its upper-e tremitywith lan'angular-1 extension- 1-32 arranged sponding--bracket 22. Slot-andescrewrconnec-#- 'l20f"=tionsf34-permit the extension to be adjustedverti-lcallylupon' its llever-. Lowerarms'of the leversy SU'urniSh-links; oftoggle-leVerathefother linkof each of which is in lthe form of a rodA38, Joined A by-a universalijoint'fd to the-head of -a spindle 25 A2guided #for Lreciprocation tlfiroug-liv ithe- -plate hubl4. "lEach'-rod138\has=a swiveled connect-ion dica-ted iniFigi-S, -whenthevspindle is loweredJ the f dicated patent, "and: latched in clamp-ingrelation by .a pawl'v 52'-'/(-Fig:3) which is `automatically re leasedasthe" supportiapproaches' the entering L45 station-A at vthe'termination'of 'a full operating cycle.`L When"theheelend ofa lshoe has been`vvintroducedinto" the' 'band 24,J the" proj ection 2t cured v'to .itsuppervextremity by. slot-and-screw 601mg` gfrom fitsliree'end, an extension58 which ends'ofltheband 24.' `'Ilius located, this extensionAshoeainthel band, furnishing 'a retaining abut-v reache's the rear' of.the bandit forces back a q curved' pressureme'mber 60 T(Fi`gs: 2,'5and' 12) arranged to contact `With"the rear of. 'said band A; at"itswppositesides Tliememberis shownias extending oppositely from thevertical portion of a bracket 62, a horizontal portion of which isguided to slide between pairs of horizontal rolls 63, 63 rotatable uponthe upper extremity of an arm S4 extending upwardly and outwardly fromthe standard I6. At the juncture of the member 60 and the bracket is anopening, in which is guided a projection 6| fromthe rear of the band 24.As illustrated, the member 60 is mounted for vertical adjustment, thearm being provided With a separate end-piece 65 carrying the rolls andbracket and joined to the bodyl of the arm by slot-and-screw connection68. Against the outer extremity of the bracket 62 bears a spring-arm 10,secured to the lower portion of the arm 04. Exerting constant tensionupon the arm T is a spring 12, connecting said arm to the standard I6.Upon the introduction of a shoe into the band 24, the force which itexerts horizontally will carry back the member 60, the arm and thespring T2 yielding. At this time, the brackets 22 at the ends of theband may shift longitudinally of their supporting rolls 20. As theoperator frees the shoe, the action of the springs upon thecontact-member 60 will urge this against the band, carrying said bandand the heel back to a position determined by the gage-extension 58.Consequently, when the operator depresses the treadle t and the arms ofthe levers 30 swinlg in, the work will have been correctly located.

As the work is engaged by the final movement of the sides .of the band24 toward each other, it is desired that said band be locked, so theshoe shall remain clamped throughout the full operating cycle after thesupport W has left the actuating member 50 at station A. Mounted uponthe standard I6 below the fulcra 3| of the levers 30, are oppositelocking plates 14, 14 guided to slide toward and from each other inupwardly inclined directions (Figs. 'I and 8) As best shown in Fig. 13,the plates have V-shaped edges lying in complemental depressions'l inthe levers 30 near their fulcra. Guided for vertical movement betweenthe plates is a wedged-shaped actuating plate T8 resting upon anexpansionspring 80, seated upon a plunger 82 movable upon the standardand with its lower end lying in the path of the head of the spindle 42.Initially, these locking elements are in the relation appearing in Fig.8, withl the wedge-plate so held that the plates 14 apply no retainingforce to the levers 30, but when the spindle rises in the clamping ofthe work, its head strikes the plunger 82 and through the spring 88 andwedge 18 forces out both plates 14. These, by their engagement with thelever-depressions 16, frictionally lock the levers 30 and thereforebrackets 22 and the sides of the band in work-clamping relation. Whenthe support W returns at the termination of an operating cycle tostation A for the removal of the wiork, the release of the latch 52permits the lowering of the spindle 42. The plunger' 82, the spring S0and the wedge '|'8 are thereby relieved of pressure, and the levers 30,with the breast-gage 56, are freed to release the work.

After the shoe S has been clamped in the support W at station A,rotation of the turret T transfers it to station B for the trimming andranding opera-tion. Referring to Figs. 1 and 3 of the drawings, thetrimming and randing mechanism has an upwardly extending arm 90 pivotedat 82 upon the frame |0 and so offset that its upper portion extends at93 about and over the turret and work-supports. The arm is formedin'sections and is adjustable with respect to its length byslot-and-screw connections 84 and a push-screw 86; It is guided in itspivotal movement toward and from the turret by a roll 88 rotatable uponthe bracket I5 and extending between spacedA walls of said arm. Upon thearm above the path of the supports is mounted a motor S4, preferablyelectric, having fixed to the lower end of its shaft the cutter b. Thishas, as appears in Fig. 12, blades 90 to act upon the periphery of theheel H and blades 98 for forming a beveled rand. The bodily approach ofthe cutter toy the work is controlled by a disk |00, rotatable in aninwardly and upwardly inclined position upon a bracket |02 adjustablysecured at |03 to the top of an angular bracket |04. The lowerhorizontal arm of the bracket |04 may be adjusted toward and from theturret by a push screw |06 and slot-and-screw connections |08. The diskhas a b-eveled edge ||0 arranged for engagement with an inclinedshoulder ||2, surrounding the band 24 just below its crease-enteringedge (Fig. l2). A spring ||4, joining the arm 90 to the frame I0, acts,when permitted, to draw the disk-surface ||0 against the band-surfaceH2. rIhus, as the support W is either revolved or rotated, the cutter bwill be held in to the periphery of the heel, and its relation will beundisturbed by irregularities which might be present were this locatingof the tool to be effected by contact with the surface of the workitself. The arm 90 is held out against the tension of the spring ||4 byconnections ||6 to the main actuating mechanism M, during the transferof the work-supports by anti-clockwise rotation of the turret T fromstation to station, and then is freed in preparation for the action ofthe cutter during the clockwise rotation of the turret and the rotationof the work-support. The connections i6, and the manner of theiroperation, may be in all essential particulars the same as in the patentbefore referred to.

The inclination of the trimmed wall of the heel to the vertical axis ofsaid heel is determined by tilting the operating portion of the cutter babout points :x: in the meeting line bounding the wall between the randand the periphery of the heel. To this end, the casing of the motor 94is carried upon the portion 93 of the arm 90 between spaced linkages gand h. As may be seen in Figs. 3 and l0, at the linkage g a projection|20 from the motor-casing, adjustable at |22 as to length, is pivoted at|24 to two links |26, |26, which are hung at one extremity to thearmportion 93 by links |28 and at the other by links |30. The linkage h(Fig. 11) is similarly arranged, corresponding elements being identifiedby the same reference-characters. Both are so proportioned that the axisof the pivot |24 of linkage g and a corresponding point |32 of linkageh. move along arcs about the points :c in the work, this beingdetermined by the linkages independently of engagement with the work.

The degree of inclination of the periphery of the heel H from the randat toward the treadend is gaged from the periphery of a toplift L uponthe heel, it being attached to the base with` sufficient accuracy torender this possible. The width of the trimming edge 96 of the cutter is.such that a narrow portion l (Fig. 12) is left uncut upon the topliftalong a line limited to close proximity to the tread-surface. From thisline the gaging is done, the projection being taken of! in thecoarse-scouring operation at station C. Contacting with the surface at Iis a Ieeler |40,

-.carried .-for. vertical adjustment at l 42 upon :thegenerall-yhorizontal arm of a bell-"crank-leverld `fulcrumedatJfiBuponthe motor-casing, af-ver -..tical arm. of :the bell-crank.being articulatedv to a Y. llink |48 adjustableas to length.Atension-spring ,|;49,.joining the verticalarm of..the.bellcrankto.the-motor-.casingurges .theeeler outwardly into engagement .withtheportion Z of .the..toplift. .'Iheouterextremity of .thelinkMBis'joinedto a crank-arm tiltV (Fig..4). .upon a .verticalrodjl52rotatable. in an..extension-.l53-from .themotor casi-ng. f A .connectionat..|5,4.fpermits. some.. rela- .tivefangular-andlongitudinal movementbetween f upper..andlowerfsectionsof the rod,jwhile compellingrotation... At.its.lower end, the. r'od |152, is .attachedtotherotatable .body-portion. of a valve Y.|55 controlling hydraulicpressure supplied` by an Aunillustratedpump throughpiping |.58"(Fig.v18) and. selectively .throughpiping'i 50 .to theoppo- `site ends ofa;cylinder'.|62 ,supported upon the .frameilandinwhich apistonIBAreciprocates .Exhaust .from .the cylinder .occurs throughthe,.pipingifand a..pipe1l66,.and a .cushioning or .storage chamber'lisshpwnl as .connected to the .supply-piping. .According to the end" ofvthe. cyl. .inder fto, .which...the. valve '.'I 5B admits' liquid, Vthe.pistonmovesin one'.v direction. or the` other, and .in .sodoingoscillates a..bell'crank=lever168i ful- ,.'crumed-.upon abracketsecuredto the cylinder (Fig.. 19) A.link'"|10, which may be adjustable.las to length,.unites a horizontally extending arm A.fof.thebell-.crank-lever to a 'link (Figs. 3 and 1), .which is pivoted `toitheplivotal point |32` of kthe -linkage h ahdat |14 to a lever |16fulcrumed at .i `.|18.,.upon' xthearmi .90. "Thejvalve'lt'and the.manner in `which it governs movement of the pisl. .tonlimayfbe the sameas the rotatable reversingi valve- I of.. .Letters Patent .of YthejUnited .States No'.` 1',078,684',"`.Keall, et"` all, November 18, 1913,it .having a rotatable plugor' body in fwhich are .passagescontrollingtlregflow oliquid through ...ports inthe Valve-casing: Itisdesiredto-so in- Lcline the .axis 'of vthe motor-shaft; 'andi lthereforefofthe cutterb; .that the edgesofthe'bladesl Williassume. vangles'.aboutpoints which corresponjd. tio .the anglesihaving' their apices atx; and occurring between' linesparallelto -the-axis of the ^heel: andlinesjoinng mtot'he "peripheryfoi-the topliiti Whenthese'anglesarethesamegthec'on- .nections to the feelenmaintain the valve |56 `clcsed andthe piston ISd remains at=rest.` At .this time,jconnections throughthe-b`el-lerank1|l8 and.. the links |10' and |12 to^the llinkage h hold.the motor 'and cutter-against movement; while the work isfreceiving theJtrimming* action# 1f, .however, the contour of the'toplifh acting-uponthe feeler, causes saidfeelerto=swing outwardly, theconnections'lfili-,'Idandfl52 fromfthefeeler soopen"thevalvethat-'pressure is admittedto the cylinder H52 upon vthe -sideof'.the-piston which forces up -the "link l. |=10. Y'Themotor. is.thereby 'tilted clockwise (Fig. 3),.and1thef cuttery removes fYfromthelneel'andtopliftany excess of material. Y Thisccntinues untilthe angleof -thecutter agrees i ,vwitlrthe'line at :'c, L, whereuponthe.valve is closed and the motor and -cutterf are.- again. held yagainstangular movement. I-Iadthe eo'ntourof :the sur- A face t Z-resulted =inopposite. or inward rnovement ef thefee-ler;A .the travelbf`thepiston-rwouldhave '--been-f-reversed. .andz the.l rnotorv `and cuttertilted tanti'u clockwise to decrease' the *amount 3 of:V materialremoved.

When .the arrnl! is .restored -to its outward, inactivepositionaftervthe .completionztof a; trimr 1 'ming:.operation,;provisionisia'lsoimadetfor :ti-ite .f ing the motor and cuttenoutwardly from .thework uponlthe linkages g and.. h.' .j There` is` fulcrumeduponthe.arm'abell-crank-lever, |00,l havinganupper.contact-portion'l|02(Fig. 18) arrangedto 5. engage aproje'ctionlld fromthe rotatable y por- 4tion of the .valve |5|f Thelower arm. of th'e. bell- .-crank-.is.united toi the frame'|0,by av link"|86, I. the length'of .which maybe varied. `lWhen the arm i190. isswun'gback to remove the operating -10..mechanism fromthe work, theconnection at"|86 .rotatesthe .belhcranlsI in a vclockwise'direction11..'(Fg') 3). `.'This..so,.turns the `valve `as to `apply ...pressuretol .the.piston|64 to. move the motor. in .L .the desired. direction..l'I'hejpurpose of this oscil- .15f lation. of Imotor. andz tool,independentlyof. that ,under the .controll of .the .feeler I 40, willappear flater. i

.The variation. 1in. the.. angular position. of...the ...axis:.of.. the.cutter bv at station B isutilized .to 20 .eiect liket movementsof theoperating means .at fthe succeeding stations... For this purpose, theref..is:carriedupon:.the.plate...|.2. ofeach support W a 1:arr1.]2;.,seeFigs. 2 5,. 6, 7.,. 15, .16; andx1'1. This ..-=cam, .adjusted asteformat. station B,. controls 25l ...the operating f mechanisms at..stations C, D...and

E. It has a casing i982, .approXir-natingfin horizontal contour that.of. a.. heel, and.. upon which .....are-smovable afseries of..successive cam-sections zarral1gedY inffan arc aboutthe support. These30..mayfbe-identicaleas: to form.. Considering.v any one of thesections, itconsists` of a head-.200 .hav-

..ing1au itssouteroside an upwardly andfinwardly..finclined..surface.20I, leading to a contact-.roll..202

. rotatablaabout a horizontal .axisradiating from wsubstantiallyuthe.center ofsthe bandld. The head is carried upon a verticalrod204rising from .fapiston- 206,'1reciprocable in a cylinder; 208 attheinner-aside offethe casing v1.98..- Rotation. of the f. Theadqand.-piston about their. .vertical ...axis is prefie vented-by a pin:209depending from .the..former f: lthifeughgf anw opening AinV thecover-plate of lthe f fcasing. The-piston+ is urged ...normally upwardffbyl. affspring .210 -interposed=-between it. and the bottom of. f :thelcylinder, .and l to. an ...extent al .45- -lowed} by they .engagement`of. vthe .piston Withthe '.upper `cylinder-head. .'.Toa-lock thepston,and -therefere; thehe ad.200 in .anh `adjusted `position and? thengrelease -them 1atpredetermined times, .ift-here is-.=mounted the...casing |98 adjacentto soitheeylinder'fZDBene'of a series of=valves i,i', i", r:qeachhav-ing arcasing- 2.|2. f This-valve-casing.. is rjoined.-to.-the-cylinder 208,-and-to a liquid-foontaining chamber 2|4 formedin 4the-casingf-ISS, .aoyjzthree pairsofioppositeports `2|6. Rotatable.55 'nsfthewcasing 2 2 y is a-z valve-body 2| 8,v through Whfichf'isran'elongated transverse passage 220. :YfSavefastofthe valves ifand i oftherst v.two :1l-.units :'of. ther-sectional `cam I,at the side of-.theffnsupportWwherethe valves are initially operated my *atgfeachz station;the manner. ofv actuation is the musa-men.'Consicleringifanyone.of4 theValves i, its zsbodyzl;extends'above vits easing 2|24 `and. the .v:mainfcasing |08 Aandhas fast upon it oppositely iprojectingarms 222-and224. The rst of these C3' a'rms is :normally fforced Iby a-torsion-springJZS, .f onnecting the walveebodyto the casing |98,against fthex adj acent: piston-rod 204. As appears 'n.fEig..2;thisplacesthepassage 22|!v out of. regstration with; the..ports 2|6.VThe liquid in the ylinder -208gabove and belowv the piston 205 isvcontact with an actuating finger 230 (Figs. 3, and 6) pivoted upon theupper extremity of the bracket I5 and yieldable outwardly against aspring 234. In the anti-clockwise revolution of the arm 224 by theturret T, as the support W travels from station A to station B, said armwill so engage the finger 230 that the other valve-arm 222 will beforced against its stop. At this time, the finger yields against thespring 234, but when the support moves in a clockwise direction, eitheras revolved by the turret or rotated about its own axis to subject theperipheral wall of the heel to the action of the cutter b, the arm 224strikes the end of the finger and rides along its inner curved edge. Asappears in Fig. 6, the body 2|8 of the valve i is thereby rotated tocarry the passage 220 into registration with the ports 2I6. This unlocksthe piston 206, the liquid now fiowing freely from one side to theother, so it may be urged up by its spring 2H] to cause the head 220 tobe freed for readjustment vertically to correspond to the angularrelation of the axis of the cutter in a manner to be hereinafterdescribed. The piston and head are then again locked by release of thearm 224 and closure of the valve by the spring 226.

After the actuating arms 224 of certain of the valves i pass the finger230 in the anti-clockwise revolution of the support W by the rotation ofthe turret and cause said finger to yield, the finger is successivelyengaged by arms 250 and 252, respectively projecting from the bodies 2|8of the valves i' and i. These valves have torsionsprings 254 which actoppositely to the springs 226, they normally holding stop-arms 256against surfaces 258 upon the cam-casing |98. As will be seen in Fig. 2,the passages 220 in the valves i and i lie normally at a different anglewith respect to the ports 2|6 than the passages of the companion valvesi. When the actuating arm 250 reaches the finger 230 in the rotation ofthe turret, its curved outer edge engages and rides over thecomplementally curved edge of the finger, opening the valve z" torelease its camsection. This engagement continues as the arm 252 reachesand contacts with the rear edge of the finger, the valve i" beingthereby also opened to free the first cam-section. Upon the clockwisemovement of the' support W, during reverse rotation of the turret, thearms 252 and 250 are successively released from the finger at the propertimes to prepare for the relooking of the sections after they have beenset.

The lever |76, which is moved by the piston |64 controlled by the feeler|40, has means to determine the vertical position of the head 200 ofeach section of the cam I. Arranged to rock upon the arm 96 about thefulcrum I`|8 of the lever |16 is a lever 246, having fixed to its outerextremity a laterally extended, convex contactportion 242 (Figs. 7 and9)', which is held nor- ,mally down by an expansion spring 244 situatedbetween the levers. This spring is without effect unless the contactmember encounters some abnormal resistance, as when a cam-section hasbeen accidentally locked, then the spring yields and prevents breakage.The vertical position of the lowermost surface of the arcuatecontactportion 242, as it is oscillated with the lever |16 and thelinkages g and h supporting the motor during the operating period,corresponds to the angular relation of the cutter. After theanticlockwise rotation of the turret T has carried the valve i", isopposite the cutter b, the arm 90 is swung in from its outer inactiveposition toward the work-support. Its contact-portion 242 finds thevalve i" open, with the piston 206 unlocked and the head 200 elevated bythe spring 2|0. The motor with the cutter is held tilted outwardly uponthe arm, because of the action of the lever upon the valve |56, with thecutter separated to the maximum extent from the work, until the arm hasreached its inward position, and the contact-portion 242 is adjacent tothe upper margin of the inclined surface 20| of the head. The lever |80has now left the valve-projection |84, so the angular relation of .themotor and cutter is under the control of the feeler. This, contactingwith the periphery of the toplift L, causes the hydraulic mechanism tocontinue the forward movement of the cutter, and the contact-portion 242rides up the remainder of the inclination of the head, forcing it downand arriving over the roll 202. This carnsection is thereby lowered to apoint determined by the angle which the motor assumes under the controlof the feeler, the downward thrust upon the casing of the support Wbeing resisted by the roll I3 on the frame. Because of the delayedmovement of the motor and cutter upon the arm to operating position, thedepressing engagement of the contact-portion with vthe surface 20| maybe made quite limited and cause little wear. Then, too, the contact ofthe feeler with the work may be made more gradual, and abrupt movementsof the motor and cutter under the control of the feeler avoided. Whenthe operating clockwise revolution of the work-support by the turretcauses the valve-arm 252 to retreat from the finger 230, the spring 254closes the valve i" and locks the head 200 in its adjusted relation justbefore the roll 202 leaves the lowest point of the contact-portion 242.The first camsection is thereby maintained in its cutter-determinedposition until unlocked during the succeeding operating cycle. As themovement of the work-support, due to its advance by the rotation of theturret, continues, the unlocked cam-section having the valve i is forceddown by its roll 202 passing beneath the curved edge of thecontactportion 242. It is locked when the arm 250 passes from theforward extremity of the finger 230 as the roll leaves the lowermostpoint of said contact-portion. Following this, and as already explained,each of the cam-sections with the valves i is unlocked just before itsroll engages the contact-portion and is locked immediately before saidroll leaves it. This is true for all the lastmentioned sections savethat at the end of the series at which the action of the cutterterminates. Here, the clockwise revolution of the work-support by theturret stops with the valvearm 224 still opposite the edge of the finger230. The movement of the support is, however, sufiicient to cause thefinger to be engaged by a roll 259 (Fig. 2) rotatable upon the cover ofthe casing |98. This presses back the finger to free the arm 224, so thespring 226 turns the valve i to locking position. The last cam-sectionis therefore held at the height to which it has been set by thecontact-portion 242. The result of all this is to produce about thesupport a cam-surface, the contour of which corresponds to thesuccessive cutter-angles and which, as previously indicated, may be usedto control the angles of the operating means at other stations withoutemploying the feeler and hydraulic mechanism. The complication of themachine is thereby reduced and, be-

cause of vthe absence of lthe =feeler, the..toplift' projection Vat Zmay -be scoured away` without disturbing the control of the operatingmechanisms at stations C, D and E.- v After th'ecomplete operatingmovement of the support W upon and by the turret T 'at station B, thenext step in the' anti-clockwise rotation of the turret revolves` thesupport to station C. Ingitially, the supportedl shoe will travel toeffirst, but during its movement it will be reversed-'so it arrives atstation C in the same relation as -it approached station B. "At stationC; the means for supporting and operating thecoarse-scouring member c,savefor minor diierences in form, are the same `as those elements -atstation B, they be-k ing shown iny Figs. 20 to 24, inclusive; The arm 90carries the motor-casing 94 Aupon a linkage g Which may be identicalwiththatat station'B. The rear linkage h' differs in nosubstantial-particular'from the linkage h, except that its link |12''is'in the form of a so it mayclear-the scouring belt,' and themotor-'projection |2is bifurcated for this reason. The contact-#lever240 4is not yieldable about itsfulcrum, but is adjustably xed as' toangle upon Aits lever'll'by screws 260. The bracket |02'ofthe gage-'diskis adjustable upon'thearm-bracket |04; It is secured throughan extension262 by a screw 263'to a spindle '254, which may turn in-bushings 266movable along a vertical borein thejbracket |04. Opposite screws 26B,threaded into said bracket and having their` heads engaging the outerextremities of the bushings, permit the bracket |02 and the gage-diskto-be varied in their vertical positions.V To allow the bracket m2 'andthe disk to beA swung aside to clear .the belt .c and its mounting, sothe former may be removed, said bracket may beturned horizontally aboutthe axis of the .spindle 264. The bracket and disk are. held in normaloperating relation by 4a rod 21|), pivoted upon the bracket Ifl'andentering a vertical slot 212 opening throughthe lower extremity of thebracket |02. A nut 214, threaded upon the free end of the rod, .clampsthis inthe slot andmaybe loosened and therod. dropped from the slot torelease the disk;

The scouring belt c is drvenby a pulley 28|) secured to the spindle ofthe motor B4, it running atits rear extremityover anidle pulley 282rotatable about a spindler284. l When the belt is in its activerelation, a reduced edge 28| of the lower head of the pulley 28|!r mayenter betweenthe rand upon the heelrH and the band 24' (Fig.

24); The spindle v22M-depends from a slide. 286,

guided for substantially horizontal movement in a projection 28T-"fromthe motor-casing,V and `is urged rearwardly by a spring 288 tofmaintainthe belt under tension. A tension-spring 289,'joine ing theprojection281 to a bracket 292-risingffrom the arm Sil, holdssaid.projection'against'an ad justable stop-screws-ZBI! v upon thebracket iorone extreme angular position of the motorv 34-and belt c. Atthe same time,` it permits thel motorywi'th g andbelt fromthe'supportsW-When the arm is thus withdrawn,` a 4cable 298`r isattached at 300 tothe motor-projection.231'.and atits lower extremity tothe substantially horizontal armfof a bell--crank-lever 302, fulcrumedupon a projecltion 304 from the frame vI 0. A vertical arm ofthebelllcrank is joinedby a 'cable 305 .to an extension 3G8-from-=one of-vthe'movable members in the mechanism M 'which actuates the connection IBfor one of the arms 90.-" As the arm ^`at station C is carried back.,tension is applied through the cables 3U6l"andf298- to so tilt themotor'that the belt c is separated fromlthe work. v The effect producedlresernbles'that at station B, in that there is only limited engagementof the Acontactportion 242 with the head-surface 29| andcorrespondinglyj less Wear. At the beg-inningof the coarse-scouringoperation, the contact-portion 242v of the lever V-24|J,fconnected' tothe motorsupporting linkage hC-engagesvthe rst section of -the cam I,whichwas set and-locked at station B to correspondwith the inclinationofthe cutter b -asgoverned by the feeller |40: This positions the axis ofthe motor-shaft, and therefore the surface ofrjthe scouring belt cadjacent to the' supportrW, at lthej same inclination to thevertical-*as was assumed by the cutter, the angles varying about thesame points :c in the line '-bel tween the periphery of the heelfandthe'rand. Downward displacementl of the'cam and its sup-Y por-t duri-ngthis action -is prevented lby-the roll I3.' As the successivecam-'sections pass beneath the lever duri-ng the revolutionfandI'rotation-of the support, thesame effect` is produced, Con-v sequently,the :entire periphery-'of the' heel acted uponrby lthe belt willhave launiform amount of materialscoured from the 'trimmed lsurface across its'entire width?.

The fine-scouring belt 3d at'. station D 4(Fig. l) ispreferablysupported andactuated inthe same manner as "thefcoarsebeltc,r"a`n`d atstation' E the arrangement ofi the brusl'iemay-'generallyLbe the `same vas thatoi the VVVcutter/hg Neitherrefquires special description. y The" Worke'support W moves to and onfromthesestations-after'leaving station `C,iinally reachingstationA withthe heel I-I-o'f thedesired peripheral contour and freed from the,removedmaterial.A 4

Inv using the machine; the operatorinsertsth'e counter-portion of theshoerSfwithits toe pointingvtoethe'left, v'betweenthe'sides of the-band24 of that work-'support W which is atstation A, vthe edge 28 of theband entering therandcrease, andforces Fthe work back against thespring-actuated contact member 60, -until' the breast of the heel H upon`the shoe has passed the gage-portion `58 uponV one of Athe clampinglevers 3B; AThe gage thereupon movesin front of the he'elebreast.k Theoperator then depresses the treadle t ntripping aclutch of* the,ractuating mechanism-M.' The member 5l) rises under the power of. themachine to force, up theA supporting spindle 42 and close in the levers3S. i Asjthe release of the depressed treadle trips` a second clutch ofthe actuating m-echanism M to produce the second step of an operatingcycle, the newly entered work being revolved by rotation of the turret Tanti-clockwise to station B. Here, the tool-carrying arm 90 is in theoutward, inactive position to which it was moved by the mechanism M atthe close of the preceding operation. The motor E4 and the trimming andranding cutter b are also rocked outwardly upon the linkages g and h bythe action of the bell-crank-lever |80 upon the valve |55 controllingpressure to the hydraulic cylinder |64, from which movement iscommunicated to the linkage h. The turret stops when the breast-cornerat the outer side of the heel is opposite the cutter b; the mechanism Mswings in the arm 90 to operating position; and the cutter is located inproximity to .the periphery of the heel by contact of the gage-disk uponthe arm 90 with the smooth and regular surface ||2 of the band 24. Thismovement of the arm toward the support W places the contact member 242,movable under the influence of the linkage h, above the upper portion ofthe inclined surface 28| of the iirst vertically adjustable section 280of the cam I, this section being governed by the valve i. The feeler |40engages the periphery of the toplift L secured to the heel H. Thisfeeler, governing the valve |56, controls the application of the forceof the cylinder 64 in the hydraulic motor mechanism to the linkage h totilt the motor and cutter about the center as, in the line at which therand meets the side wall of the heel. Depending upon Whether this walllies outside or inside the desired angle to which the periphery of theheel is to be trimmed, the feeler-con'trolled mechanism will shift themotor and cutter in or out upon its linkages, so said cutter will removemore or less material from the heel to bring this to approximately thechosen form. The projection l, however, is left upon the toplift toreceive engagement of the feeler. 'Ihe movement of the contact member242 under the influence of the arm 90 having carried said contact memberover the upper portion of the incline 20|, as just indicated, then thefeeler-controlled movement of the contact member with the linkage h willadvance it over the roll 202 of the first cam-section 200. This itdepresses against the spring 2|0 to a position determined by the angularrelation of the cutter. This first section was unlocked by its valve i"when it reached the linger 230 in the anti-clockwise rotation of theturret. Now, the mechanism M reverses the direction of rotation of theturret, so the side of the heel is subjected to the action of thecutter. The valve of the rst cam-section, in leaving the nger 230, locksthe sectionhead in its adjusted relation. Following this, the valves z"and i of the succeeding sections, by the repeated action of the finger,are caused successively to unlock and then lock the heads of theirsections in positions corresponding to the operating anglesY of thecutter. Thisis iirst during the clockwise revolution ofthe support W byrotation of the turret T, then during clockwise rotation of the supportabout its axis upon the turret, and finally during further clockwiserevolution of the support. When the last section reaches the oppositebreast-corner of the heel, and the roll 259 has freed the correspondingvalve i from the finger 230, so it may lock the section, the trimmingoperation will have been completed, and all the sections set to providea cam with a contour determined by the successive angles assumed by thecutter. The turret stops; the arm is swung back by the mechanism M; andthe motor and cutter are tilted outwardly upon the arm by the action ofthe lever |32 upon the valve |56. This is followed by the next step ofthe turret, caused by another depression of the treadle t, to carry thesupport W to station C. Between stations, the support is rotated by theturret to bring the shoe, which left station B toe rst, into the reverseposition, with the heel in advance as it left station A. At stations C,D and E, similar actions cause, respectively, the coarse-scouring,ne-scouring and brushing of the heel, except that at these stations thecam I, adjusted at station B by its engagement with the contact `member242 actuated by the motorpositioning linkage, exercises complete controlover the angle at which the coarse-scouring belt c, the iine-scouringbelt d and the brush c are presented to the work. The toplift-projectionl is removed by the belt c. At the close of the operating cycle, as thesupport W returns to station A, the latch 52 is freed to release thework for removal from the support by the operator. During the succeedingoperations upon the iirst shoe, other shoes are being appliedsuccessively as the supports arrive at station A, so all the operatingmechanisms are acting simultaneously.

Having described my invention, what I claim as new and desire to secureby Letters Patent of the United States is:

1. In a machine for operating upon the edge of a shoe-bottom, ashoe-support, a rotatable tool for operating upon the bottom-edge of asupported shoe, means for moving the support and tool relatively tocarry the point of operation of the tool about the edge, means fordetermining the extent of bodily approach of the tool to the work, andmeans contacting with the bottomedge of th-e shoe for determining theangle between the operating portion of the tool and said edge.

2. In a machine for operating upon the edge of a shoe-bottom, ashoe-support, a rotatable tool for operating upon the bottom-edge of asupported shoe, means for moving the support to .present the edge to thetool, motor mechanism for moving the tool to vary the angle between itsoperating portion and the edge, and means contacting with the edge ofthe shoe-bottom for controlling the motorI mechanism to determine theangle.

3. In a machine for operating upon the edge of a shoe-bottom, ashoe-support, a rotatable tool for operating upon the bottom-edge of asupported shoe, means for moving the support to present the edge to thetool, hydraulic mechanism for moving the tool to vary the angle be tweenits operating portion and the edge, and a feeler contacting with theedge and controlling the hydraulic mechanism.

4. In a machine for trimming a heel having an attached toplift, ashoe-support, a tool for trimming the periphery of a heel upon asupported shoe, means for moving the support and tool relatively tocarry the point of operation of the tool about the heel, and meanscontacting With the toplift along a line limited to close proximity tothe tread-surface for determining the angle between the operatingportion of the tool and the heel-periphery.

5. In a machine for trimming a heel having an attached toplift, ashoe-support, a tool for trimming the periphery of a heel upon a supported shoe and leaving a projection thereon at

